using System;
using System.Linq;
using System.Collections.Generic;

public class Test
{
	public static void Main()
	{
	       Dictionary<string, List<object>> mydata = new Dictionary<string, List<object>>();
        List<object> ldate=new List<object>(){"1/1/2000","1,1/2001"};
        List<object> lage=new List<object>(){"4","5"};

        mydata["date"] = ldate;
        mydata["age"] = lage;

        List<Dictionary<string, object>> mytarget = new List<Dictionary<string, object>>();
        Dictionary<string,object> t1=new Dictionary<string,object>();
        Dictionary<string,object> t2=new Dictionary<string,object>();

        t1["date"]="1/1/2000";
        t1["age"]="4";

        t2["date"]="1/1/2001";
        t2["age"]="5";
        mytarget.Add(t1);
        mytarget.Add(t2);
        var orig = mydata;
        var res = Enumerable.Range(0, orig.Values.First().Count)
    .Select(
        i => orig.Aggregate(
            new Dictionary<string,object>()
        ,   (d, p) => { d[p.Key] = p.Value[i]; return d; }
        )
    ).ToList();
    foreach (var d in res) {
        foreach (var p in d) {
            Console.WriteLine("{0} -> {1}", p.Key, p.Value);
        }
    }
	}
}